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 Read through your lab packet.  Take only the following with you: ◦ Lab packet ◦ Writing utensil(s) ◦ Blank sheet of paper  You will have about 10.

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Presentation on theme: " Read through your lab packet.  Take only the following with you: ◦ Lab packet ◦ Writing utensil(s) ◦ Blank sheet of paper  You will have about 10."— Presentation transcript:

1  Read through your lab packet

2  Take only the following with you: ◦ Lab packet ◦ Writing utensil(s) ◦ Blank sheet of paper  You will have about 10 minutes at each station.  For each station, follow the directions in your lab packet, and answer the questions as you go.  After you finish, you will define each of the terms on the front page of your lab packet.

3  Read Conceptual Physics Chapters 29 and 31 and answer review questions ◦ Read pages 442-459 ◦ Answer Review Questions #1-27 on pages 460-461 ◦ Read pages 480-496 ◦ Answer Review Questions #1-20 on pages 497-498

4  A wave travels 347 meters in 104 seconds. The frequency of the wave is 43.1 Hz. What is the wavelength of the wave?  Take out your lab packet and making inferences packet. Keep them on your desk in front of you.

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6  All about the information in the making inferences packet  You must use a pencil  Do NOT write on the quiz. Mark your answers only on your bubble sheet.  If you appear to be talking while anyone has their quiz, you will receive a zero.  When you finish, turn in your quiz and bubble sheet, and pick up a worksheet.  Work silently on the worksheet until told that all quizzes have been submitted

7  An electromagnetic wave is traveling through earth’s atmosphere with a frequency of 1.21 GHz. a) What is its period? b) What is its speed? c) What is its wavelength? d) How would you categorize this EM wave?

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10  Doppler Effect  Polarization  Refraction  Interference  Diffraction  Reflection

11  The Doppler Effect is a change in frequency caused by a relative motion between the noise source and the detector.  The change in frequency causes a corresponding change in period and wavelength  Light: the “blue-shift” or “red-shift” is used to tell if stars are moving towards us or away

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14  A transverse wave is polarized if it is only allowed to oscillate in one direction.  Light: polarization filters or reflection  Sound: longitudinal waves cannot be polarized

15  Refraction is a bending of a wave when it travels from one medium to another.  Refraction only occurs if the speed of the wave is different in the two media  The index of refraction is related to wave speed and can help us calculate how much the wave will refract

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17  When two waves superpose, the result is called interference. ◦ http://phet.colorado.edu/en/simulation/legacy/wave- interference http://phet.colorado.edu/en/simulation/legacy/wave- interference  Sound: PhET simulation ◦ http://phet.colorado.edu/en/simulation/legacy/sound http://phet.colorado.edu/en/simulation/legacy/sound  Light: If monochromatic light passes through a double slit (two nearby holes), it will produce bands of light and dark  Constructive interference is when the waves build on each other (i.e., crest meets crest)  Destructive interference is when waves cancel each other (i.e., crest meets trough)

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19  Diffraction is the spreading out of a wave  Sound: can travel around corners  Light: spreads out after passing through a slit  Different colors of light diffract different amounts, creating a rainbow pattern

20  Reflection is when a wave bounces off of the boundary of a medium.  Sound: bounces off walls ◦ Echoes ◦ The Oval Office  Light: most of what we see is due to the reflection of light

21  Bending Light – Reflection and refraction ◦ http://phet.colorado.edu/en/simulation/bending- light http://phet.colorado.edu/en/simulation/bending- light  Wave Interference – Sound and Light ◦ http://phet.colorado.edu/en/simulation/legacy/wa ve-interference http://phet.colorado.edu/en/simulation/legacy/wa ve-interference  Sound – Interference and more ◦ http://phet.colorado.edu/en/simulation/legacy/wa ve-interference http://phet.colorado.edu/en/simulation/legacy/wa ve-interference

22  Wave Properties worksheet  Waves Review

23  A laser beam with a wavelength of 680 nm is pointed at a whiteboard 2.7 m away. 1. How long does it take the laser beam to hit the board after it is first turned on? 2. What is the frequency of the laser beam?

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